An 82-year-old woman burned in an antisemitic firebombing in Boulder, Colo., earlier this month has died, authorities said Monday, prompting an upgrade in charges against the person suspected of carrying out the attack.

Karen Diamond, 82, became the first death from the June 1 firebombing of a Boulder, Colorado, demonstration voicing support for Israeli hostages in Gaza.

One of the victims of an anti-Semitic attack on a protest in Colorado died of her injuries last week, according to the Boulder County District Attorney’s office. 82-year-old Karen Diamond was fatally injured by Mohamed Soliman,